Measurement of the Higgs boson mass in the H → ZZ* → 4ℓ and H -> ΥΥ channels with root √s=13 TeV pp collisions using the ATLAS detector

The mass of the Higgs boson is measured in the ⁎H→ZZ⁎→4ℓ and in the H→γγ decay channels with 36.1 fb⁻¹ of proton–proton collision data from the Large Hadron Collider at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector in 2015 and 2016. The measured value in the ⁎H→ZZ⁎→4ℓ channel is ⁎m^ZZ_H⁎ =124.79 ± 0.37GeV, while the measured value in the H→γγ channel is m^γγ_H = 124.93 ± 0.40GeV. Combining these results with the ATLAS measurement based on 7 and 8 TeV proton–proton collision data yields a Higgs boson mass of m_H=124.97 ± 0.24GeV.